... 2.DSP system 3.Linear guide rail,ball screw 4.CE,2 year warranty Advertising CNC Router, Advertising Engraver / Advertising cnc ... high qualitylinear guide rail DSP system high speed stepper motor CE,2 year warrantyTechnology parameters: ModelGD-1212GD-1218GD-1224 X,Y ... , aluminum, fireproofing board and so on. 1224 Advertising CNC Router With CE